Question
The average age of a group of 15 students is 20
years. Two persons of age 50 years and 35 years, left the group and 2 persons of age 50 years and 80 years, joined the group. Find the new average age of the group.Solution
Required average = {(15 × 20) – 50 – 35 + 50 + 80}/15 = 23 years
Which of the following statement is/are true?
Statement A: When a weed spp. is already resistance to a herbicide shows resistance to other herbic...
Monopoly and Oligopoly are the examples of?
What does FYM stands for?
With reference to micro-irrigation, which of the following statements is/are correct?
1. Fertiliser/nutrient loss can be reduced.
...The specific heat of quartz among the different soil constituents is the ___ ?
Weeds which are very short lived by nature are called:
Match the following meteorological instruments with their uses:
What is the floor space required for pregnant cow?
What is the type of farming done along the contour of sloping land to avoid soil erosion with slope less than 33%?
Choose the correct option
Statement I: Percolation ponds/tanks are constructed for effective recharge of groundwater
Statement II: Emergen...
Relevant for Exams:
